MOUNTAINS Mountains Mt Everest 29 035 ft or

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MOUNTAINS

MOUNTAINS

Mountains Mt. Everest ( 29, 035 ft. or 8, 850 m ) Is the

Mountains Mt. Everest ( 29, 035 ft. or 8, 850 m ) Is the tallest mountain in the world…. .

What is a Mountain? • A large mass of rock or landform that rises

What is a Mountain? • A large mass of rock or landform that rises a great distance above its base (about 300 meters)

Where do mountains form? • Generally, along convergent plate boundaries: (Collision)

Where do mountains form? • Generally, along convergent plate boundaries: (Collision)

How do mountains form? • Mountains form from rocks that have been permanently deformed

How do mountains form? • Mountains form from rocks that have been permanently deformed under stress.

What is the Tallest Mountain in the United States? Mount Mc. Kinley, Alaska with

What is the Tallest Mountain in the United States? Mount Mc. Kinley, Alaska with an elevation of 20, 320 feet or 6194 meters

3 Types of mountains: • Folded Mountains • Dome Mountains • Fault-block Mountains

3 Types of mountains: • Folded Mountains • Dome Mountains • Fault-block Mountains

1) Folded Mountains formed by the folding of rock layers during plate collisions EX.

1) Folded Mountains formed by the folding of rock layers during plate collisions EX. Appalachian Mountains

The Folding Process

The Folding Process

Folded Mountains

Folded Mountains

Types of folds in Rock • Anticline Upward fold • Syncline Downward fold

Types of folds in Rock • Anticline Upward fold • Syncline Downward fold

Where is the Anticline?

Where is the Anticline?

2) Dome Mountain a circular folded mountain, Formed by UPLIFT EX. Adirondack Mountains

2) Dome Mountain a circular folded mountain, Formed by UPLIFT EX. Adirondack Mountains

Dome Mountain

Dome Mountain

3) Fault-Block Mountains formed when normal faults uplift a block of rock EX. Sierra

3) Fault-Block Mountains formed when normal faults uplift a block of rock EX. Sierra Nevada Mountains

Fault-Block Mountains

Fault-Block Mountains

Movement can occur in several directions in Fault-Block Mountains

Movement can occur in several directions in Fault-Block Mountains

Fault-Block Mountains Teton Mountain Range, Wyoming

Fault-Block Mountains Teton Mountain Range, Wyoming

 A reverse fault occurs when the hanging wall moves up (Convergent Boundaries push

A reverse fault occurs when the hanging wall moves up (Convergent Boundaries push rocks up and over) A normal fault occurs when the hanging wall moves down (Divergent Boundaries release tension and rocks slide down)

How is a thrust fault formed? A thrust fault is formed when compressive stresses

How is a thrust fault formed? A thrust fault is formed when compressive stresses act over great distances. A thrust fault is a reverse fault in which the fault plane dips 45 degrees or less from the horizontal.

What type of fault occurs when rock on opposite sides of a fault plane

What type of fault occurs when rock on opposite sides of a fault plane move horizontally past each other? A Strike-slip Fault

How do Horsts and Grabens differ? Horsts are large blocks of crust that have

How do Horsts and Grabens differ? Horsts are large blocks of crust that have been thrust upward between faults… Grabens are large blocks of crust that have dropped down between faults…

Identify the Fault types:

Identify the Fault types:

 • There also underwater mountains: Seamounts • Ships use SONAR to make 3

• There also underwater mountains: Seamounts • Ships use SONAR to make 3 -D images of underwater features

SOL Review: What do circles on a topographic map indicate?

SOL Review: What do circles on a topographic map indicate?